Ошибка c249f мерседес w211

If you have a Mercedes Benz with  Sensotronic Brakes also known as brake by wire you may have been greeted with the “Brakes Defective Stop Vehicle” error message in your instrument cluster. There are three common types of failures that happen with the Drive-by-Wire brakes on the Mercedes Benz.

1. Operating time of Component of A7/3 is exceeded.
2. Complete failure of the SBC/Electro-Hydraulic Brake System Hydraulic Pump
3. In a few cases a defective brake switch could cause the same error message. You can buy one on Amazon see here, for less than $20. The switch is located right above the brake pedal and  can easily be replaced by anyone.
   

We belive that Mercedes Benz set a  cycle limit to the SBC Hydraulic pump based on their testing and research. The SBC module counts breaking cycles, after exciting the value of approx 300000 , an error message occurs. Some of the errors reported are:

• SBC Control module failure
• STOP VEHICLE  displayed on instrument cluster
• Brake defective stop vehicle
• REDUCED BRAKING POWER – VISIT WORKSHOP (Replace brake light switch first.)

Your SBC pump is defective and you loose all the braking or have reduced braking power. The SBC pump which creates pressure and applies that pressure to the brakes when you push the brake pedal is not working properly. This error is common issue on Mercedes E Class W211, SL R230, CLS Class with  SBC Error CODE C249F. After so many operation cycles the SBC looses efficiency or can completely fail while driving. So that you don’t get a failure while driving they want you to replace the SBC Hydraulic Unit before it fails catastrophically.

Understanding SBC (drive by wire) brakes.

Here is a great pdf document hosted on the Mercedes Benz forum that has a detailed explanation of how the SBC brakes work. This is published by Mercedes Benz.

Or read this article from the 500sec.com website.

Get a new SBC Pump installed for free by the dealer.

The dealer has extended the warranty of the SBC to 10 years and unlimited miles. It doesn’t mater how many owners the car has had or if you have existing warranty. If you have a Mercedes-Benz with this problem and the car is less than 10 years old find a local Mercedes Benz dealer and take the car to be repaired. Enter your zip here to find the dealer nearest to you. They will tell you that they need to diagnose it first. Let them do that as they have to send a request for repair to MBUSA and get approval.

Here is a copy of Warranty Coverage Extension (SBC/Electro-Hydraulic Brake System Hydraulic Pump) Mercedes Benz issued.

How to disable the “Brake Defective Stop Vehicle” Warning.

Reset operation time / cycle of SBC Hydraulic Pump. 

It is possible to reset the SBC Hydraulic Pump using Star Diagnostics. Please be aware that if you do this you could loose the brakes while driving which could cause serious injuries or death. Here are the instructions. 

Use at your own risk.

RESET SBC SERVICE LIGHT:
1st: make sure that engine is running!!! In SD Developer mode you need to go to:
Entwickelingsdaten (developer data) —> ansteueringen (control gear) —> Gesamstliste aller Ansteuerungen (complete list of all the control circuits).

See how many times brake has been pressed.  
Bremsenzahler (DJ_GetBrLive) (brake payer (dj_getbrlive)). 

Then below you see:
Bremsenzahler aktualisieren und Lebensdauerzahler F neu berechenen (brake upgrade and lifetime payer payers recalculated f) -> click it ! Parameter uINBR = 0 then click F3 

1 line down you see (or search for this line):
Bremsenzahler auf beliebigen Wert setzen (DJ_SetNBr) -> click it Parameter uINBR = 0 then click F3 

Then scroll down until you see the line’s: 

Lebensdauerzahler F neu berechenen (DJ_CalcLiveTime) Parameter uINBR = 0 then click F3 

Lebensdauerzahler F neu berechenen und schreiben (DJ_BuildAndWriteF) Parameter uINBR = 0 then click F3 

Log out of SBC !! Log out of vehicle!! 

Potentially catastrophic!

Impacted Bosch Part Numbers:

• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 012 (0265960012)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 013 (0265960013)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 015 (0265960015)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 018 (0265960018)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 019 (0265960019)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 020 (0265960020)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 023 (0265960023)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 025 (0265960025)

SBC Hydraulic Pump Error Codes

SBC – MB Number 0044314212 HW Version 11.2002 SW Version 17.2004
Code
C25D6 This fault can be ignored and erased
C26DE Hydraulic fault: Malfunction in pressure supply
C26BB Hydraulic fault: Malfunction in pressure supply

ESP Error Code
C14BE System faults: Test control module A7/3n1 (SBC COntrol module)

If you have a Mercedes Benz with  Sensotronic Brakes also known as brake by wire you may have been greeted with the “Brakes Defective Stop Vehicle” error message in your instrument cluster. There are three common types of failures that happen with the Drive-by-Wire brakes on the Mercedes Benz.

1. Operating time of Component of A7/3 is exceeded.
2. Complete failure of the SBC/Electro-Hydraulic Brake System Hydraulic Pump
3. In a few cases a defective brake switch could cause the same error message. You can buy one on Amazon see here, for less than $20. The switch is located right above the brake pedal and  can easily be replaced by anyone.
   

We belive that Mercedes Benz set a  cycle limit to the SBC Hydraulic pump based on their testing and research. The SBC module counts breaking cycles, after exciting the value of approx 300000 , an error message occurs. Some of the errors reported are:

• SBC Control module failure
• STOP VEHICLE  displayed on instrument cluster
• Brake defective stop vehicle
• REDUCED BRAKING POWER – VISIT WORKSHOP (Replace brake light switch first.)

Your SBC pump is defective and you loose all the braking or have reduced braking power. The SBC pump which creates pressure and applies that pressure to the brakes when you push the brake pedal is not working properly. This error is common issue on Mercedes E Class W211, SL R230, CLS Class with  SBC Error CODE C249F. After so many operation cycles the SBC looses efficiency or can completely fail while driving. So that you don’t get a failure while driving they want you to replace the SBC Hydraulic Unit before it fails catastrophically.

Understanding SBC (drive by wire) brakes.

Here is a great pdf document hosted on the Mercedes Benz forum that has a detailed explanation of how the SBC brakes work. This is published by Mercedes Benz.

Or read this article from the 500sec.com website.

Get a new SBC Pump installed for free by the dealer.

The dealer has extended the warranty of the SBC to 10 years and unlimited miles. It doesn’t mater how many owners the car has had or if you have existing warranty. If you have a Mercedes-Benz with this problem and the car is less than 10 years old find a local Mercedes Benz dealer and take the car to be repaired. Enter your zip here to find the dealer nearest to you. They will tell you that they need to diagnose it first. Let them do that as they have to send a request for repair to MBUSA and get approval.

Here is a copy of Warranty Coverage Extension (SBC/Electro-Hydraulic Brake System Hydraulic Pump) Mercedes Benz issued.

How to disable the “Brake Defective Stop Vehicle” Warning.

Reset operation time / cycle of SBC Hydraulic Pump. 

It is possible to reset the SBC Hydraulic Pump using Star Diagnostics. Please be aware that if you do this you could loose the brakes while driving which could cause serious injuries or death. Here are the instructions. 

Use at your own risk.

RESET SBC SERVICE LIGHT:
1st: make sure that engine is running!!! In SD Developer mode you need to go to:
Entwickelingsdaten (developer data) —> ansteueringen (control gear) —> Gesamstliste aller Ansteuerungen (complete list of all the control circuits).

See how many times brake has been pressed.  
Bremsenzahler (DJ_GetBrLive) (brake payer (dj_getbrlive)). 

Then below you see:
Bremsenzahler aktualisieren und Lebensdauerzahler F neu berechenen (brake upgrade and lifetime payer payers recalculated f) -> click it ! Parameter uINBR = 0 then click F3 

1 line down you see (or search for this line):
Bremsenzahler auf beliebigen Wert setzen (DJ_SetNBr) -> click it Parameter uINBR = 0 then click F3 

Then scroll down until you see the line’s: 

Lebensdauerzahler F neu berechenen (DJ_CalcLiveTime) Parameter uINBR = 0 then click F3 

Lebensdauerzahler F neu berechenen und schreiben (DJ_BuildAndWriteF) Parameter uINBR = 0 then click F3 

Log out of SBC !! Log out of vehicle!! 

Potentially catastrophic!

Impacted Bosch Part Numbers:

• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 012 (0265960012)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 013 (0265960013)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 015 (0265960015)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 018 (0265960018)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 019 (0265960019)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 020 (0265960020)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 023 (0265960023)
• Mercedes E Class W211/R230 SBC Repair CODE C249F – 0 265 960 025 (0265960025)

SBC Hydraulic Pump Error Codes

SBC – MB Number 0044314212 HW Version 11.2002 SW Version 17.2004
Code
C25D6 This fault can be ignored and erased
C26DE Hydraulic fault: Malfunction in pressure supply
C26BB Hydraulic fault: Malfunction in pressure supply

ESP Error Code
C14BE System faults: Test control module A7/3n1 (SBC COntrol module)

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